The central dogma of molecular biology states that:
a. DNA is transcribed into RNA, which is translated into protein.
b. DNA is translated into protein.
c. DNA is translated into RNA, which is transcribed into protein.
d. RNA is transcribed into protein.
e. DNA is transcribed into RNA
Ans: a. DNA is transcribed into RNA, which is translated into protein.
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Common vectors used for cloning genes are
A. bacteria. B. viruses. C. nucleotides. D. plasmids. E. viruses AND plasmids.
You have a DNA sequence of 1600 bp. To characterize it, you decide to make a restriction map. Cutting with the first enzyme, you show by electrophoresis that the fragments produced are 400 and 1200 bp, respectively
After using the second enzyme, you recover 700-bp and 900-bp fragments. After treatment with both enzymes, fragments were 300, 400, and 900 bp. Which is the correct map? A) -900 ------/400--/3--- B) -400/--900-----/300 --- C) -300-/--400--/--900---- D) -400-/300-/---900----- E) -400-/-100/--300--/900
The monomers of polysaccharides are:
A) fatty acids. B) amino acids. C) simple sugars. D) nucleotides.
For surface cultivation of microorganisms, a sulfated polymer called agar can be extracted from ________ and added to liquid media to solidify it.
A. animal fat B. algae C. fungi D. bacteria